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44800009 = 405111059
BaseRepresentation
bin1010101011100…
…1100000001001
310010022002001121
42222321200021
542432100014
64240115241
71052536162
oct252714011
9103262047
1044800009
1123319a01
1213005b21
1393875a7
145d42769
153dee124
hex2ab9809

44800009 has 4 divisors (see below), whose sum is σ = 44815120. Its totient is φ = 44784900.

The previous prime is 44800001. The next prime is 44800033. The reversal of 44800009 is 90000844.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44800009 - 23 = 44800001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44800001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1479 + ... + 9580.

It is an arithmetic number, because the mean of its divisors is an integer number (11203780).

Almost surely, 244800009 is an apocalyptic number.

It is an amenable number.

44800009 is a deficient number, since it is larger than the sum of its proper divisors (15111).

44800009 is a wasteful number, since it uses less digits than its factorization.

44800009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15110.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 44800009 is about 6693.2808845887. The cubic root of 44800009 is about 355.1616244802.

The spelling of 44800009 in words is "forty-four million, eight hundred thousand, nine".

Divisors: 1 4051 11059 44800009